/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import { Pipe, PipeTransform } from '@angular/core';
import {isObservable, of} from "rxjs";
import {catchError, filter, map, startWith, tap} from "rxjs/operators";
import {LoadingValue} from "@app/modules/shared/model/loading-value";

@Pipe({
  name: 'stripLoading'
})
export class StripLoadingPipe implements PipeTransform {

  transform(val) {
    return isObservable(val)
        ? val.pipe(
            filter(val => (val instanceof LoadingValue) && val.value),
            map(( val : LoadingValue<any>) => val.value)
        )
        : val;
  }

}
